Navigation and GPS Systems Flashcards
7 cards from real UAG practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Navigation and GPS Systems flashcards as text
What is geofencing in the context of UAS navigation systems?
Answer: Virtual geographic boundaries programmed to restrict UAS flight to defined areas
Geofencing uses GPS coordinates to create virtual boundaries that automatically prevent or warn UAS from flying into restricted areas such as airports or sensitive locations.
A UAS 'Return-to-Home' (RTH) feature relies primarily on which navigation technology to find its launch point?
Answer: GPS coordinates recorded at launch
RTH functions by using GPS to record the launch coordinates and then navigating the UAS back to those stored GPS coordinates when triggered.
Before conducting a UAS flight mission, what pre-flight check should a remote pilot perform regarding GPS?
Answer: Confirm GPS signal acquisition with an adequate number of satellites and check for relevant GPS NOTAMs
Before flight, pilots should verify the aircraft has acquired sufficient satellites for accurate positioning and review NOTAMs for any GPS outages or anomalies in the operating area.
What is the primary purpose of GPS waypoints in UAS mission planning?
Answer: To define predetermined geographic coordinates that guide autonomous flight paths
GPS waypoints are specific geographic coordinates programmed into the UAS flight controller to define the route and actions for autonomous or semi-autonomous missions.
What is compass deviation (as opposed to magnetic variation) in UAS navigation?
Answer: The error in a compass caused by magnetic fields from the aircraft's own electronics or structure
Compass deviation is the local error in a magnetic compass caused by electromagnetic interference from the aircraft's motors, wiring, and electronics, requiring a compass calibration correction.
In the context of UAS GPS navigation, what does 'autonomous loiter' or 'position hold' mode depend upon?
Answer: Continuous GPS position data combined with IMU sensor fusion
Position hold combines GPS position data with inertial measurement unit (IMU) data through sensor fusion to actively counteract wind and maintain a fixed geographic position.
Under FAA Part 107, which statement best describes the remote pilot's responsibility regarding GPS-based automation features?
Answer: The remote pilot-in-command remains fully responsible for the safety of flight regardless of automation used
Under Part 107, the remote pilot-in-command retains full responsibility and authority for the safety of the flight at all times, regardless of what automation or GPS features are engaged.